iCUE not working properly with ST100 (EQ, voice prompts, Surround not working)

Folks,

So I just upgraded to the latest iCUE version (3.19.120) and I have noticed that the software no longer is able to work properly with my ST100. Here's the current status:

Working

• I can hear audio with my stereo headsets just fine.
  
• Microphone works
  

Not working (they worked prior to 3.19):

• EQ presents do not do anything. I have switched all the EQs that come with the software (FPS optimized, Bass Boost, etc.) and the audio does not change at all
  
• I no longer get audio prompts from iCUE when I turn on/off my mic, my surround sound, etc.
  
• I press the surround sound button to enable/disable it and nothing happens. I am not sure in which state my headphones are stuck, though windows reports an 8 channel audio device connected at all times
  

troubleshooting tried so far

• Uninstalled software and cleaned registry
  
• Unplugged the ST100
  
• Installed the latest iCUE version
  
• Rebooted machine
  
• Plugged in ST100. It gets detected, I get audio from it but symptoms described above persist
  

System specs

• MSI Z390I Gaming edge AC
  
• Intel i7-9700K
  
• Windows 10 latest updates installed (up-to-date to Sept '19)
  

Any idea or pointers to fix these issues is greatly appreciated

Update: After much tinkering, I decided 3.19 was too much trouble to bear so I decided to uninstall everything and re-install previous version 3.18.77. I am back to full functionality where all voice prompts work, I can enable/disable surround sound at will and equalizer presets work as intended.

I would strongly recommend Corsair to fix whatever issues are messing this newest release.